Gas distributors, burners and gas cookers

Abstract

The present invention provides a gas distribution plate, a burner and a gas cooker. The gas distribution plate includes: a gas distribution body, the gas distribution body includes a gas distribution seat and a gas distribution cover connected to the gas distribution seat, the gas distribution body is provided with a first airflow channel; a gas distribution ring, the gas distribution ring is installed at the first airflow channel, and cooperates with the gas distribution seat and / or the gas distribution cover to guide the gas flow in the first airflow channel. This solution is equivalent to splitting the gas distribution ring from the gas distribution body and processing it separately, which simplifies the structure of the gas distribution body, which is conducive to simplifying the structure of the gas distribution cover and the gas distribution seat, and the structure of the gas distribution ring itself is also relatively simple, which is conducive to simplifying the molding process of the gas distribution plate, reducing production costs, and making the gas distribution plate highly manufacturable, which is conducive to mass production.

Description

Technical Field

[0001] The present application relates to the technical field of burners, and in particular to a gas distribution plate, a burner and a gas cooker. Background Art

[0002] At present, the gas distribution plate of the existing burner generally uses copper or die-cast aluminum as raw materials, and there are two main methods: one is to rivet the die-cast aluminum upper cover plate with the die-cast aluminum lower cover plate, and the other is to rivet the copper upper cover plate with the copper-aluminum lower cover plate. The upper and lower cover plates of these two methods have complex structures and complex molding processes, resulting in high production costs. Summary of the invention

[0003] In order to solve at least one of the above technical problems, an object of the present application is to provide a gas distribution plate.

[0004] Another object of the present application is to provide a burner comprising the above-mentioned gas distribution plate.

[0005] Another object of the present application is to provide a gas cooker comprising the burner.

[0006] In order to achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present invention, there is provided a gas distribution plate, comprising: a gas distribution body, the gas distribution body comprising a gas distribution seat and a gas distribution cover connected to the gas distribution seat, the gas distribution body being provided with a first air flow channel; an air distribution ring, the air distribution ring being installed at the first air flow channel and cooperating with the gas distribution seat and / or the gas distribution cover to guide the gas flow in the first air flow channel.

[0007] According to an embodiment of the first aspect of the present invention, the gas separation disk includes a gas separation body and a gas separation ring. The gas separation body includes a gas separation seat and a gas separation cover. The gas separation seat is equivalent to the main body of the lower cover plate in the prior art, and the gas separation cover is equivalent to the main body of the upper cover plate in the prior art. The gas separation seat and the gas separation cover are fixedly connected, and the gas separation ring and the gas separation body are split structures, which are installed at the first air flow channel of the gas separation body after molding. Therefore, the gas separation disk includes at least three components: the gas separation seat, the gas separation cover and the gas separation ring. Compared with the solution in the prior art that the gas separation disk only includes two components, the upper cover plate and the lower cover plate, this solution is equivalent to splitting the gas separation ring from the gas separation body and processing it separately, which simplifies the structure of the gas separation body, which is conducive to simplifying the structure of the gas separation cover and the gas separation seat, and the structure of the gas separation ring itself is also relatively simple, which is conducive to simplifying the molding process of the gas separation disk, reducing production costs, and making the gas separation disk highly manufacturable, which is conducive to mass production.

[0008] In addition, the gas distribution plate in the above embodiment of the present invention may also have the following additional technical features:

[0009] According to one embodiment of the present invention, the gas separation body is provided with an inner circumferential wall and an outer circumferential wall, the outer circumferential wall is sleeved on the outside of the inner circumferential wall, and the first air flow channel is formed between the inner circumferential wall and the outer circumferential wall; the gas separation body is provided with at least one air intake channel, and the air intake channel is connected to the first air flow channel.

[0010] In this embodiment, the first airflow channel is formed between the inner circumferential wall and the outer circumferential wall. Since the inner circumferential wall and the outer circumferential wall are both full-circle annular structures, the first airflow channel is also a full-circle annular structure. In this way, after the gas transported by the air inlet channel enters the first airflow channel, it can flow along the first airflow channel to ensure that the gas can diffuse to the entire circle. Compared with the solution of designing the first airflow channel as a non-full-circle annular structure, this solution is conducive to ensuring the uniformity of gas diffusion and the uniformity of mixing of gas and air, avoiding the situation where the discontinuous distribution of gas causes a circle of flame to be segmented.

[0011] According to an embodiment of the present invention, the inner circumferential wall is arranged on the gas dividing seat, and the outer circumferential wall is arranged on the gas dividing cover.

[0012] In this embodiment, the air separator seat and the air separator cover cooperate to form the first air flow channel. It is only necessary to reasonably design the size and position of the inner circumferential wall of the air separator seat and the outer circumferential wall of the air separator cover. After assembly, the space between the inner circumferential wall and the outer circumferential wall can form the first air flow channel. Compared with the scheme of using the air separator cover alone or the air separator seat alone to form the first air flow channel, this scheme does not need to separately preset the spatial structure of the first air flow channel on the air separator cover or the air separator seat, which is conducive to reducing the slot-like structure on the air separator cover or the air separator seat, thereby further simplifying the mold structure, further reducing the demoulding difficulty, and further reducing the production cost, and further improving the manufacturability of the air separator plate.

[0013] According to one embodiment of the present invention, the air separation body is provided with a second air flow channel, which is located inside the first air flow channel; the air separation ring includes a guide portion, which is in contact with the outer circumferential wall and covers a portion of the top opening of the first air flow channel.

[0014] In this embodiment, the first airflow channel is located on the outside and is an outer channel, which can form an outer circle flame after the burner is ignited; the second airflow channel is located on the inside and is an inner channel, which can form an inner circle flame after the burner is ignited. In this way, the cooker has an inner circle flame and an outer circle flame when in use, which is conducive to improving the uniformity of heating and is also convenient for users to adjust the firepower according to their needs. Among them, the drainage part of the air distribution ring contacts the outer circumferential wall of the air distribution cover and covers a part of the top opening of the first airflow channel, which is equivalent to the drainage part covering the outer area of ​​the top opening of the first airflow channel. In this way, after the gas enters the first airflow channel, it will be blocked by the drainage part, thereby generating a tendency to cross the opening of the first airflow channel and flow inward, avoiding the loss caused by the gas flowing outward, and facilitating the full mixing and diffusion of the gas and air, thereby facilitating the combustion and energy gathering of the burner. At the same time, blocked by the drainage part, the gas will also have a tendency to rotate and flow along the first airflow channel, thereby facilitating the uniform diffusion of the gas.

[0015] According to an embodiment of the present invention, the guide portion extends along the circumference of the first airflow channel and surrounds the central axis of the first airflow channel.

[0016] In this embodiment, the guide portion is annular and matches the shape of the gas dividing ring, thereby avoiding local protrusion of the gas dividing ring and simplifying the structure of the gas dividing ring, thereby simplifying the processing technology and reducing production costs. At the same time, the annular guide portion matches the shape of the annular first airflow channel and can guide the gas at various parts of the circumference of the first airflow channel, thereby facilitating the diffusion uniformity of the gas.

[0017] According to one embodiment of the present invention, the central axis of the second airflow channel is parallel or colinear with the central axis of the air dividing ring; the central axis of the air intake channel is inclined relative to the central axis of the second airflow channel; along the direction approaching the air dividing ring, the central axis of the air intake channel is inclined outward.

[0018] In this embodiment, the central axis of the second air flow channel is parallel or colinear with the central axis of the air distribution ring, generally in the vertical direction. Setting the central axis of the air inlet channel in the above-mentioned inclined direction is conducive to reducing the distance between the entrances of the multiple air inlet channels when there are multiple air inlet channels, making it easier to supply air to the multiple air inlet channels through one port, thereby simplifying the structure of the burner.

[0019] According to an embodiment of the present invention, the air intake channel and the second air flow channel are arranged on the air distributor seat; there are multiple air intake channels, and the multiple air intake channels are arranged at intervals along the circumference of the air distributor seat.

[0020] In this embodiment, the air inlet channel and the second air flow channel are arranged on the air separation seat, which can greatly simplify the structure of the air separation cover and simplify the assembly process of the air separation cover and the air separation seat. The air is supplied to the first air flow channel through multiple air inlet channels, so that multiple circumferential parts of the first air flow channel can simultaneously inlet air and diffuse in multiple directions, which is conducive to further improving the mixing uniformity of the gas and air.

[0021] According to an embodiment of the present invention, the air dividing cover is provided with a positioning step; the air dividing ring is an annular plate structure, and the air dividing ring is supported and positioned by the positioning step.

[0022] In this embodiment, the air separator is designed as an annular plate structure, which is very simple and can be formed by a suitable process according to the needs. The positioning step of the air separator cover can position and support the air separator, thereby reducing the difficulty of assembling the air separator.

[0023] According to an embodiment of the present invention, the positioning step includes a first step surface and a second step surface, and two ends of the second step surface are respectively connected to the first step surface and the outer circumferential wall; the air dividing ring is supported by the second step surface.

[0024] In this embodiment, the first step surface, the second step surface, and the outer circumferential wall are connected in sequence, so that the air dividing cover roughly forms a two-step structure, and the positioning step is located on the outside and upper side of the first air flow channel. The air dividing ring is then placed on the second step surface to ensure that the air dividing ring can block the top opening of the first air flow channel to guide the airflow in the first air flow channel.

[0025] According to an embodiment of the present invention, the air dividing ring and the first step surface have an interference fit; or the air dividing ring and the first step surface have a clearance fit.

[0026] In this embodiment, the air separator ring and the first step surface are in an interference fit manner, which can ensure the position accuracy of the air separator ring and prevent the air separator ring from moving randomly, thereby improving the reliability of the air separator ring.

[0027] Alternatively, the air divider ring and the first step surface are clearance-fitted, which can prevent the air divider ring and the air divider body from rubbing against each other during loading and unloading and causing jamming, thereby reducing the difficulty of loading and unloading.

[0028] According to one embodiment of the present invention, the gas dividing ring is detachably connected to the gas dividing body.

[0029] The gas distributor ring and the gas distributor body are detachably connected, which is convenient for users to install or remove the gas distributor ring according to their needs during use. When the gas distributor ring is installed, the firepower is relatively uniform; while when the gas distributor ring is removed, the firepower is relatively strong. This increases the user's choice range and is conducive to improving the user's comfort.

[0030] According to one embodiment of the present invention, the outer contour line of the top end of the air dividing cover is circular, and the diameter of the outer contour line of the top end of the air dividing cover is in the range of 125 mm to 135 mm.

[0031] The outer diameter of the existing gas distribution plate is generally based on the diameter of the top contour line of the gas distribution cover. After research, it was found that the larger the outer diameter of the gas distribution plate, the better the gas dispersion ability; the smaller the outer diameter of the gas distribution plate, the better the gas dispersion ability. The outer diameter of the existing gas distribution plate is generally within 120mm, and this solution increases the outer diameter of the gas distribution plate to within the range of 125mm to 135mm, thereby improving the dispersion ability of the gas and improving the combustion energy concentration effect.

[0032] According to an embodiment of the present invention, the air dividing ring is a stamping part; and / or the air dividing cover and the air dividing seat are die-casting parts.

[0033] The air distributor ring is a stamped part, which can be prepared by ordinary stamping technology or laser blanking technology, which is beneficial to ensure the strength of the air distributor, simplifies the production process and has high manufacturability.

[0034] The air distributor cover and the air distributor seat are die-cast, that is, they are integrally formed through a die-casting process, and have high structural strength, which is beneficial to ensuring the strength of the air distributor plate, and the process is mature, which is conducive to mass production.

[0035] According to an embodiment of the present invention, one of the gas separation cover and the gas separation seat is provided with a positioning hole, and the other is provided with a positioning protrusion, and the positioning protrusion is matched with the positioning hole in a concave-convex manner.

[0036] In this embodiment, the positioning hole and the positioning protrusion can play a good positioning role in the assembly process of the air separation cover and the air separation seat, thereby reducing the difficulty of assembling the air separation cover and the air separation seat. Furthermore, the height of the positioning protrusion is greater than the depth of the positioning hole, so that a part of the positioning protrusion can pass through the positioning hole and protrude from the positioning hole. Then, the part of the positioning protrusion protruding from the positioning hole is flattened so that its area is greater than the cross-sectional area of ​​the positioning hole, so as to prevent the air separation cover from the air separation seat and play the role of connecting the air separation cover and the air separation seat.

[0037] According to an embodiment of the second aspect of the present invention, a burner is provided, comprising: a gas distribution plate as any one of the embodiments of the first aspect; a burner head, which is connected to a first air flow channel of the gas distribution plate and is used to supply air to the first air flow channel; a fire cover, which is arranged on the gas distribution plate and is provided with fire holes connected to the first air flow channel.

[0038] A burner provided according to an embodiment of the second aspect of the present invention includes the gas distribution plate provided by any embodiment of the first aspect, and thus has all the beneficial effects of any of the above embodiments, which will not be described in detail herein.

[0039] According to an embodiment of a third aspect of the present invention, there is provided a gas cooker, comprising: a cooker body; and a burner according to an embodiment of the second aspect, the burner being connected to the cooker body.

[0040] According to a gas cooker provided by an embodiment of the third aspect of the present invention, the gas cooker includes the burner provided by the embodiment of the second aspect, and thus has all the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0041] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0043] Figure 1 A three-dimensional structural diagram of a gas distribution plate provided according to an embodiment of the present invention is shown;

[0044] Figure 2 Indicated Figure 1 A bottom-up structural diagram of the gas distribution plate shown;

[0045] Figure 3 Indicated Figure 2 The cross-sectional structure diagram of the gas distribution plate along the AA direction is shown;

[0046] Figure 4 Indicated Figure 1 The main structural diagram of the gas distribution plate shown;

[0047] Figure 5 The exploded structure diagram of the gas distribution plate provided according to one embodiment of the present invention is shown;

[0048] Figure 6 A three-dimensional structural diagram of a burner provided according to an embodiment of the present invention is shown;

[0049] Figure 7 A partial exploded structural diagram of a gas cooker provided according to an embodiment of the present invention is shown;

[0050] Figure 8 A structural block diagram of a gas cooker provided according to an embodiment of the present invention is shown;

[0051] Fig. 9The structure of a gas cooker according to an embodiment of the present invention is shown.

[0052] in, Figures 1 to 9 The corresponding relationship between the reference numerals and component names in the figure is:

[0053] 1 gas plate, 10 gas body, 11 gas cover, 111 outer circumferential wall, 112 positioning step, 1121 first step surface, 1122 second step surface, 113 top outer contour line, 114 positioning protrusion, 12 gas seat, 121 inner circumferential wall, 122 air inlet channel, 123 second air flow channel, 124 positioning hole, 13 first air flow channel, 20 gas ring, 21 drainage part;

[0054] 2 burner, 202 burner head, 204 fire cover, 2042 first fire cover, 2044 second fire cover, 206 fire hole;

[0055] 3 gas stove, 302 stove body, 3022 shell, 3024 flameout protection device, 3026 ignition device, 3028 panel, 3030 gas pipe, 3032 valve body, 3034 thermocouple, 3036 ignition needle. DETAILED DESCRIPTION

[0056] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0057] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0058] Refer to the following Figures 1 to 9 The gas distribution plate, burner and gas cooker provided according to some embodiments of the present invention are described.

[0059] like Figure 1 As shown, a gas separation plate 1 provided according to an embodiment of the first aspect of the present invention includes: a gas separation body 10 and a gas separation ring 20.

[0060] Specifically, the gas separation body 10 includes a gas separation seat 12 and a gas separation cover 11 connected to the gas separation seat 12 , and the gas separation body 10 is provided with a first air flow channel 13 .

[0061] like Figure 1 As shown, the gas dividing ring 20 is installed at the first gas flow channel 13 and cooperates with the gas dividing seat 12 and / or the gas dividing cover 11 to guide the gas flow in the first gas flow channel 13 .

[0062] According to an embodiment of the first aspect of the present invention, an air dividing plate 1 is provided, and the air dividing plate 1 includes an air dividing body 10 and an air dividing ring 20. The air dividing body 10 includes an air dividing seat 12 and an air dividing cover 11. The air dividing seat 12 is equivalent to the main body of the lower cover plate in the prior art, and the air dividing cover 11 is equivalent to the main body of the upper cover plate in the prior art. The air dividing seat 12 and the air dividing cover 11 are fixedly connected, and the air dividing ring 20 and the air dividing body 10 are a split structure, and are installed in the first air flow channel 13 of the air dividing body 10 after molding.

[0063] Therefore, the gas distribution plate 1 includes at least three components: the gas distribution seat 12, the gas distribution cover 11 and the gas distribution ring 20. Compared with the solution in the prior art that the gas distribution plate 1 only includes two components, the upper cover plate and the lower cover plate, this solution is equivalent to splitting the gas distribution ring 20 from the gas distribution body 10 and processing it separately, which not only simplifies the structure of the gas distribution body 10, which is conducive to simplifying the structure of the gas distribution cover 11 and the gas distribution seat 12, but also the structure of the gas distribution ring 20 itself is relatively simple, which is conducive to simplifying the molding process of the gas distribution plate 1, reducing production costs, and making the gas distribution plate 1 highly manufacturable, which is conducive to mass production.

[0064] Specifically, the first air flow channel 13 of the air separation body 10 can be arranged on the air separation seat 12, or on the air separation cover 11, or can be formed by the air separation seat 12 and the air separation cover 11. The air separation ring 20 is installed at the first air flow channel 13, and can only cooperate with the air separation seat 12, or only cooperate with the air separation cover 11, or cooperate with the air separation seat 12 and the air separation cover 11 at the same time. The specific cooperation method can include interference fit, clearance fit, fastener connection, welding and the like.

[0065] Since the first air flow channel 13 is a space for gas flow, an air dividing ring 20 is arranged at the first air flow channel 13, so that the space structure and the physical structure coexist in this part of the air dividing plate 1, and the space structure is prone to local thinning and narrowing. Therefore, if the air dividing ring 20 is integrated on the air dividing cover 11 or the air dividing seat 12, the structure of the air dividing cover 11 or the air dividing seat 12 will be complicated. When the commonly used casting process is used for molding, the mold is relatively complicated, the cost is high, and the demolding difficulty is high during molding, and the manufacturability is low, which is not conducive to mass production.

[0066] The present solution separates the air distributor ring 20 and processes it separately, which can effectively avoid the above situation, simplify the structure of the air distributor cover 11 and the air distributor seat 12, thereby simplifying the mold structure, and reducing the difficulty of demolding, thereby reducing production costs, and significantly improving the manufacturability of the air distributor disk 1, which is conducive to mass production.

[0067] In one embodiment of the present invention, the gas separation body 10 is provided with an inner circumferential wall 121 and an outer circumferential wall 111. Figure 3The outer circumferential wall 111 is sleeved on the outer side of the inner circumferential wall 121. The first air flow channel 13 is formed between the inner circumferential wall 121 and the outer circumferential wall 111. The gas separation body 10 is provided with at least one air inlet channel 122, as shown in FIG. Figure 2 and Figure 3 The air inlet channel 122 is in communication with the first air flow channel 13 .

[0068] Specifically, the inner circumferential wall 121 is disposed on the gas distributor seat 12. Figure 5 The outer circumferential wall 111 is provided on the gas distribution cover 11, as shown in FIG. Figure 5 shown.

[0069] In this embodiment, the first airflow channel 13 is formed between the inner circumferential wall 121 and the outer circumferential wall 111. Since the inner circumferential wall 121 and the outer circumferential wall 111 are both full-circle annular structures, the first airflow channel 13 is also a full-circle annular structure. In this way, after the gas transported by the air inlet channel 122 enters the first airflow channel 13, it can flow along the first airflow channel 13, ensuring that the gas can be diffused throughout the entire circle.

[0070] Compared with the solution of designing the first airflow channel 13 as a non-full-circle annular structure, this solution is conducive to ensuring the uniformity of gas diffusion and the uniformity of mixing of gas and air, and avoiding the situation where a circle of flame appears segmented due to intermittent gas distribution.

[0071] At the same time, the air distributor seat 12 and the air distributor cover 11 cooperate to form the first air flow channel 13. It is only necessary to reasonably design the size and position of the inner circumferential wall 121 of the air distributor seat 12 and the outer circumferential wall 111 of the air distributor cover 11. After assembly, the space between the inner circumferential wall 121 and the outer circumferential wall 111 can form the first air flow channel 13. Compared with the scheme of using the air distributor cover 11 or the air distributor seat 12 alone to form the first air flow channel 13, this scheme does not need to separately preset the spatial structure of the first air flow channel 13 on the air distributor cover 11 or the air distributor seat 12, which is conducive to reducing the slot-like structure on the air distributor cover 11 or the air distributor seat 12, thereby further simplifying the mold structure, further reducing the demoulding difficulty, and further reducing the production cost, and further improving the manufacturability of the air distributor plate 1.

[0072] In one embodiment of the present invention, the gas separation body 10 is provided with a second gas flow channel 123, such as Figure 3 The second air flow channel 123 is located inside the first air flow channel 13. The air divider 20 includes a flow guide portion 21, as shown in FIG. Figure 3 The flow guide portion 21 contacts the outer circumferential wall 111 and covers a portion of the top opening of the first air flow channel 13 .

[0073] In this embodiment, the first airflow channel 13 is located on the outside and is an outer channel, which can form an outer circle flame after the burner 2 is ignited; the second airflow channel 123 is located on the inside and is an inner channel, which can form an inner circle flame after the burner 2 is ignited. In this way, the cooker has an inner circle flame and an outer circle flame when in use, which is conducive to improving heating uniformity and also convenient for users to adjust the firepower according to needs.

[0074] The guide portion 21 of the gas distribution ring 20 contacts the outer circumferential wall 111 of the gas distribution cover 11 and covers a part of the top opening of the first gas flow channel 13, which is equivalent to the guide portion 21 covering the outer area of ​​the top opening of the first gas flow channel 13. In this way, after the gas enters the first gas flow channel 13, it will be blocked by the guide portion 21, so that it will have a tendency to pass through the opening of the first gas flow channel 13 and flow inward, avoiding the loss caused by the gas flowing outward, and facilitating the full mixing and diffusion of the gas and air, thereby facilitating the combustion and energy concentration of the burner 2.

[0075] At the same time, blocked by the guide portion 21, the gas will also have a tendency to flow in a rotational manner along the first gas flow channel 13, which is beneficial to uniform diffusion of the gas.

[0076] In one embodiment of the present invention, the guide portion 21 extends along the circumference of the first air flow channel 13 and surrounds the central axis of the first air flow channel 13 .

[0077] In this embodiment, the guide portion 21 is annular and matches the shape of the gas dividing ring 20, thereby avoiding local protrusion of the gas dividing ring 20 and simplifying the structure of the gas dividing ring 20, thereby simplifying the processing technology and reducing the production cost. At the same time, the annular guide portion 21 matches the shape of the annular first airflow channel 13, and can guide the gas at various parts of the circumference of the first airflow channel 13, thereby facilitating the diffusion uniformity of the gas.

[0078] In one embodiment of the present invention, Figure 3 As shown, the central axis of the second air flow channel 123 is parallel or colinear with the central axis of the air dividing ring 20. The central axis of the air inlet channel 122 is tilted relative to the central axis of the second air flow channel 123. Along the direction close to the air dividing ring 20, the central axis of the air inlet channel 122 is tilted outward.

[0079] In this embodiment, the central axis of the second air flow channel 123 is parallel or colinear with the central axis of the air dividing ring 20, generally in the vertical direction. The central axis of the air inlet channel 122 is set in the above-mentioned inclined direction. If there are multiple air inlet channels 122, it is beneficial to reduce the distance between the entrances of the multiple air inlet channels 122, and it is convenient to supply air to the multiple air inlet channels 122 through one port, thereby simplifying the structure of the burner 2.

[0080] In one embodiment of the present invention, the air inlet channel 122 and the second air flow channel 123 are provided on the air distributor 12. The number of the air inlet channels 122 is multiple, such as Figure 2 As shown, a plurality of intake passages 122 are arranged at intervals along the circumference of the air distributor 12 .

[0081] In this embodiment, the air inlet channel 122 and the second air flow channel 123 are arranged on the air separation seat 12, which can greatly simplify the structure of the air separation cover 11 and simplify the assembly process of the air separation cover 11 and the air separation seat 12. The multiple air inlet channels 122 supply air to the first air flow channel 13, so that multiple circumferential positions of the first air flow channel 13 can simultaneously inlet air and diffuse in multiple directions, which is conducive to further improving the mixing uniformity of the gas and air.

[0082] Furthermore, the plurality of air inlet channels 122 are evenly distributed along the circumference of the air distributor 12. Figure 2 In the embodiment, the number of the air inlet passages 122 is four, and the four air inlet passages 122 are evenly distributed along the circumference of the air distributor 12 .

[0083] In one embodiment of the present invention, the gas distribution cover 11 is provided with a positioning step 112. Figure 3 As shown. The air separator 20 is an annular plate structure. Figure 5 As shown, the air separator 20 is supported and positioned by the positioning step 112 .

[0084] In this embodiment, the air separator 20 is designed as an annular plate structure, which is very simple and can be formed by a suitable process as required. The positioning step 112 of the air separator cover 11 can position and support the air separator 20, thereby reducing the difficulty of assembling the air separator 20.

[0085] Specifically, the positioning step 112 includes a first step surface 1121 and a second step surface 1122. Figure 3 The two ends of the second step surface 1122 are respectively connected to the first step surface 1121 and the outer circumferential wall 111 . The air separator 20 is supported by the second step surface 1122 .

[0086] In this embodiment, the first step surface 1121, the second step surface 1122, and the outer circumferential wall 111 are connected in sequence, so that the air dividing cover 11 roughly forms a two-step structure, and the positioning step 112 is located on the outside and upper side of the first air flow channel 13. The air dividing ring 20 is placed on the second step surface 1122 to ensure that the air dividing ring 20 can cover the top opening of the first air flow channel 13 to guide the airflow in the first air flow channel 13.

[0087] In one embodiment of the present invention, the air divider ring 20 is interference fit with the first step surface 1121 .

[0088] In this embodiment, the air divider 20 and the first step surface 1121 are in an interference fit manner, which can ensure the position accuracy of the air divider 20 and prevent the air divider 20 from moving randomly, thereby improving the reliability of the air divider 20 .

[0089] In another embodiment of the present invention, the air divider ring 20 is clearance-matched with the first step surface 1121 .

[0090] The air ring and the first step surface 1121 are clearance-matched, which can prevent the air ring 20 and the air separator body 10 from rubbing against each other during loading and unloading, thereby reducing the difficulty of loading and unloading.

[0091] In one embodiment of the present invention, the gas dividing ring 20 is detachably connected to the gas dividing body 10 .

[0092] The gas separator 20 is detachably connected to the gas separator body 10, so that the user can install or remove the gas separator 20 as needed during use. With the gas separator 20 installed, the firepower is relatively uniform; while with the gas separator 20 removed, the firepower is relatively strong. This increases the user's choice range and helps improve the user's comfort.

[0093] In one embodiment of the present invention, the top outer contour line 113 of the gas distribution cover 11 is circular. Figure 4 As shown, the diameter D of the top outer contour line 113 of the air distributor cover 11 is in the range of 125 mm to 135 mm, such as 125 mm, 128 mm, 130 mm, 132 mm, 135 mm, etc.

[0094] The outer diameter of the existing gas distribution plate 1 is generally based on the diameter of the top contour line of the gas distribution cover 11. After research, it was found that the larger the outer diameter of the gas distribution plate 1, the better the gas dispersion ability; the smaller the outer diameter of the gas distribution plate 1, the better the gas dispersion ability. The outer diameter of the existing gas distribution plate 1 is generally within 120mm, and this solution increases the outer diameter of the gas distribution plate 1 to within the range of 125mm to 135mm, thereby improving the gas dispersion ability and improving the combustion energy concentration effect.

[0095] In one embodiment of the present invention, the air distributor ring 20 is a stamped part, and the air distributor cover 11 and the air distributor seat 12 are die-cast parts.

[0096] The gas distributor ring 20 is a stamped part, which can be manufactured by ordinary stamping technology or laser blanking technology, which is beneficial to ensure the strength of the gas distributor plate 1, simplifies the production process, and has high manufacturability.

[0097] The gas distributor cover 11 and the gas distributor seat 12 are die-cast parts, that is, they are integrally formed by a die-casting process, and have high structural strength, which is beneficial to ensuring the strength of the gas distributor plate 1 . The process is mature and is conducive to mass production.

[0098] In one embodiment of the present invention, one of the gas separation cover 11 and the gas separation seat 12 is provided with a positioning hole 124, and the other is provided with a positioning protrusion 114, and the positioning protrusion 114 is matched with the positioning hole 124 in a concave-convex manner. Figure 3 shown.

[0099] In this embodiment, the positioning holes 124 and the positioning protrusions 114 can play a good positioning role during the assembly process of the air distributor cover 11 and the air distributor seat 12, thereby reducing the difficulty of assembling the air distributor cover 11 and the air distributor seat 12.

[0100] Furthermore, the height of the positioning protrusion 114 is greater than the depth of the positioning hole 124, so that a portion of the positioning protrusion 114 can pass through the positioning hole 124 and protrude from the positioning hole 124. The portion of the positioning protrusion 114 protruding from the positioning hole 124 is flattened so that its area is larger than the cross-sectional area of ​​the positioning hole 124, thereby preventing the air separation cover 11 and the air separation seat 12 from separating, thereby playing the role of connecting the air separation cover 11 and the air separation seat 12.

[0101] like Figure 6 As shown, a burner 2 provided according to an embodiment of the second aspect of the present invention comprises: a gas distribution plate 1 as in any one of the embodiments of the first aspect, a burner head 202 and a fire cover 204. Since the burner 2 comprises the gas distribution plate 1 provided in any one of the embodiments of the first aspect, it has all the beneficial effects of any of the embodiments, which will not be described in detail.

[0102] Specifically, the burner head 202 is connected to the first air flow channel 13 of the gas distribution plate 1 for supplying gas to the first air flow channel 13. The fire cover 204 is disposed on the gas distribution plate 1 and is provided with a fire hole 206 connected to the first air flow channel 13.

[0103] The fire cover 204 includes a first fire cover 2042 and a second fire cover 2044 . The fire hole 206 of the first fire cover 2042 is connected to the first air flow channel 13 , and the fire hole 206 of the second fire cover 2044 is connected to the second air flow channel 123 .

[0104] The first fire cover 2042 covers the first air flow channel 13 , and the second fire cover 2044 covers the second air flow channel 123 . The gas is guided to burn by the fire cover 204 in the cavity formed between the fire cover 204 and the gas distribution plate 1 .

[0105] like Figure 8As shown, a gas cooker 3 provided according to an embodiment of the third aspect of the present invention comprises: a cooker body 302 and a burner 2 as in the embodiment of the second aspect, wherein the burner 2 is connected to the cooker body 302 .

[0106] According to a gas cooker 3 provided by an embodiment of the third aspect of the present invention, the gas cooker 3 includes the burner 2 provided by the embodiment of the second aspect, and thus has all the beneficial effects of any of the above embodiments, which will not be described in detail here.

[0107] Specifically, Figure 7 and Fig. 9 As shown, the main body 302 of the gas cooker includes a shell 3022, a panel 3028, a gas pipe 3030, an ignition device 3026, a flameout protection device 3024, a valve body 3032 and other structures. The flameout protection device 3024 includes a thermocouple 3034, and the ignition device 3026 includes an ignition needle 3036. The panel 3028 is installed on the shell 3022, and is provided with operating parts such as a knob connected to the ignition device 3026 and the flameout protection device 3024, so that the user can control the gas cooker. The burner 2 is arranged in the shell 3022, and the burner head 202 of the burner 2 is connected to the gas pipe 3030, and the gas pipe 3030 is used to transport gas to the burner 2, and the gas pipe 3030 is connected to the valve body 3032.

[0108] A specific embodiment is described below with reference to the accompanying drawings.

[0109] A specific embodiment of the present invention provides an air distribution plate 1, including an air distribution cover 11, an air distribution seat 12 and an air distribution ring 20. The air distribution ring 20 is an annular plate structure. The air distribution ring 20 is also an annular structure as a whole, and the inner wall surface is provided with a positioning step 112 and an outer circumferential wall 111, and a plurality of positioning columns are evenly arranged at the bottom. The air distribution seat 12 is provided with an inner circumferential wall 121 and four air inlet channels 122 evenly distributed along the circumferential direction, the outlet of the air inlet channel 122 passes through the inner circumferential wall 121, a second air flow channel 123 is provided in the middle, and a plurality of positioning holes 124 are provided on the outside.

[0110] The air distributor cover 11 and the air distributor seat 12 are die-cast parts, and the air distributor ring 20 is a stamping part. When assembling, the positioning column of the air distributor cover 11 is inserted into the positioning hole 124 of the air distributor seat 12, and then the connection is fixed by riveting or fasteners such as screws, and the air distributor ring 20 is pre-installed on the positioning step 112 of the air distributor cover 11. When in use, the user can remove the air distributor ring 20 as needed. This assembly method has simple process and high production efficiency.

[0111] The central axis of the second airflow channel 123 is along the vertical direction, and the central axis of the air intake channel 122 is inclined relative to the vertical direction, and the air intake channel 122 extends outwardly in an inclined direction from bottom to top. With the cooperation of the four air intake channels 122 and the air dividing ring 20, the gas entering the first airflow channel 13 will rotate and diffuse in multiple directions, and have a high degree of mixing with the air.

[0112] The first airflow channel 13 is formed between the outer circumferential wall 111 of the air distributor seat 12 and the inner circumferential wall 121 of the air distributor cover 11. The inner circumferential area of ​​the air distributor ring 20 (i.e., the flow guide portion 21) covers the outer circumferential area of ​​the first airflow channel 13, so that the gas entering the first airflow channel 13 from the air inlet channel 122 tends to flow upward and inward, which is beneficial to the combustion and energy gathering of the burner 2.

[0113] At the same time, the first air flow channel 13 is an annular channel, connecting the four air inlet channels 122, and there is also a second air flow channel 123 in the center, which is convenient for the gas to be evenly diffused and fully mixed with the air.

[0114] In summary, the gas distribution cover 11 and the gas distribution seat 12 are integrally formed by die-casting, and the gas distribution ring 20 is formed by laser blanking or stamping, which not only ensures the strength of the gas distribution plate 1, but also simplifies the production process of the gas distribution plate 1, has high manufacturability, is conducive to mass production, and reduces costs. At the same time, the gas can be fully mixed and diffused under the guidance of the gas distribution ring 20, so that the burner 2 gathers energy and improves the efficiency of the burner 2.

[0115] In this application, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0116] In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the present application.

[0117] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0118] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas distribution plate, characterized in that: include: An air separation body, the air separation body comprising an air separation seat and an air separation cover connected to the air separation seat, the air separation body being provided with a first air flow channel; An air dividing ring, which is installed at the first air flow channel and cooperates with the air dividing seat and / or the air dividing cover to guide the flow of gas in the first air flow channel; The gas separation body is provided with an inner circumferential wall and an outer circumferential wall, the outer circumferential wall is sleeved outside the inner circumferential wall, and the first air flow channel is formed between the inner circumferential wall and the outer circumferential wall; The gas separation body is provided with at least one air intake channel, and the air intake channel is communicated with the first air flow channel; The inner circumferential wall is arranged on the gas separation seat, and the outer circumferential wall is arranged on the gas separation cover; The gas separation body is provided with a second air flow channel, and the second air flow channel is located inside the first air flow channel; The air dividing ring includes a guide portion, which contacts the outer circumferential wall and covers a portion of a top opening of the first air flow channel.

2. The gas distribution plate according to claim 1, characterized in that: The guide portion extends along the circumference of the first air flow channel and surrounds the central axis of the first air flow channel.

3. The gas distribution plate according to claim 1, characterized in that: The central axis of the second air flow channel is parallel or colinear with the central axis of the air dividing ring; The central axis of the air inlet passage is arranged obliquely relative to the central axis of the second air flow passage; Along the direction approaching the air dividing ring, the central axis of the air inlet passage is tilted outward.

4. The gas distribution plate according to claim 3, characterized in that: The air inlet channel and the second air flow channel are arranged on the air distributor seat; There are multiple air intake channels, and the multiple air intake channels are arranged at intervals along the circumferential direction of the air distributor.

5. The gas distributor according to any one of claims 1 to 4, characterized in that: The gas distribution cover is provided with a positioning step; The air dividing ring is an annular plate structure, and the air dividing ring is supported and positioned by the positioning step.

6. The gas distribution plate according to claim 5, characterized in that: The positioning step comprises a first step surface and a second step surface, and two ends of the second step surface are respectively connected to the first step surface and the outer circumferential wall; The air separator is supported by the second step surface.

7. The gas distribution plate according to claim 6, characterized in that: The air dividing ring is interference fit with the first step surface; or The air dividing ring is clearance-matched with the first step surface.

8. The gas distribution plate according to any one of claims 1 to 4, characterized in that: The gas separation ring is detachably connected to the gas separation body.

9. The gas distributor according to any one of claims 1 to 4, characterized in that: The outer contour line of the top end of the air dividing cover is circular, and the diameter of the outer contour line of the top end of the air dividing cover is in the range of 125 mm to 135 mm.

10. The gas distributor according to any one of claims 1 to 4, characterized in that: The air separator is a stamped part; and / or The air distribution cover and the air distribution seat are die-casting parts.

11. The gas distributor according to any one of claims 1 to 4, characterized in that: One of the gas separation cover and the gas separation seat is provided with a positioning hole, and the other is provided with a positioning protrusion, and the positioning protrusion is matched with the positioning hole in a concave-convex manner.

12. A burner, characterized in that: include: The gas distributor according to any one of claims 1 to 11; A furnace head, the furnace head being in communication with the first air flow channel of the gas distribution plate and being used for supplying air to the first air flow channel; A fire cover is arranged on the gas distribution plate, and the fire cover is provided with a fire hole connected with the first air flow channel.

13. A gas cooker, characterized in that: include: Cooker body; and The burner according to claim 12, wherein the burner is connected to the stove body.

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